import resolve from '@rollup/plugin-node-resolve';
import commonjs from '@rollup/plugin-commonjs';
import typescript from '@rollup/plugin-typescript';
import terser from '@rollup/plugin-terser';
import dts from 'rollup-plugin-dts';
import serve from 'rollup-plugin-serve';
import livereload from 'rollup-plugin-livereload';

const isDev = process.env.ROLLUP_WATCH;
const isProd = process.env.NODE_ENV === 'production';

// 基础插件
const basePlugins = [
  resolve(),
  commonjs(),
  typescript({
    tsconfig: './tsconfig.json',
    declaration: false,
    sourceMap: !isProd,
  }),
];

// 开发服务器配置
const devPlugins = isDev ? [
  serve({
    open: true,
    contentBase: ['site', 'dist'],
    port: 3001,
  }),
  livereload({
    watch: ['src', 'site'],
  }),
] : [];

// 输出配置
export default [
  // UMD（开发模式）
  {
    input: 'src/index.ts',
    output: {
      file: 'dist/metona-toast.js',
      format: 'umd',
      name: 'MeToast',
      exports: 'named',
      sourcemap: true,
    },
    plugins: [...basePlugins, ...devPlugins],
  },
  // 生产构建（非 dev 模式时输出全格式）
  ...(isDev ? [] : [
    // ESM
    {
      input: 'src/index.ts',
      output: {
        file: 'dist/metona-toast.esm.js',
        format: 'es',
        exports: 'named',
        sourcemap: true,
      },
      plugins: basePlugins,
    },
    // CommonJS
    {
      input: 'src/index.ts',
      output: {
        file: 'dist/metona-toast.cjs.js',
        format: 'cjs',
        exports: 'named',
        sourcemap: true,
      },
      plugins: basePlugins,
    },
    // UMD 压缩版
    {
      input: 'src/index.ts',
      output: {
        file: 'dist/metona-toast.min.js',
        format: 'umd',
        name: 'MeToast',
        exports: 'named',
        sourcemap: false,
      },
      plugins: [
        ...basePlugins,
        terser({
          compress: {
            drop_console: true,
            drop_debugger: true,
            pure_funcs: ['console.log', 'console.warn'],
            passes: 2,
          },
          format: { comments: false },
          mangle: { toplevel: true },
        }),
      ],
    },
    // TypeScript 声明文件合并
    {
      input: 'src/index.ts',
      output: {
        file: 'dist/metona-toast.d.ts',
        format: 'es',
      },
      plugins: [dts()],
    },
  ]),
];